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Explore the formulas behind our calculators. Each entry includes the formula expression, variable definitions, and a worked example.
A mortgage calculator estimates monthly payments on a home loan by factoring in the principal amount, interest rate, loan term, property taxes, and insurance. It helps homebuyers understand total borrowing costs before committing to a mortgage.
| Symbol | Variable | Unit |
|---|---|---|
| M | Monthly Payment | USD |
| P | Principal Loan Amount | USD |
| r | Monthly Interest Rate | annual rate / 12 |
| n | Total Number of Payments | months |
Result: $2,023/month
Principal + interest only. Add property tax (~$350/mo) and insurance (~$125/mo) for total PITI of ~$2,498/mo.
A BMI (Body Mass Index) calculator measures body fat based on height and weight for adult men and women. BMI is a screening tool that categorizes individuals as underweight (<18.5), normal (18.5-24.9), overweight (25-29.9), or obese (30+).
| Symbol | Variable | Unit |
|---|---|---|
| BMI | Body Mass Index | kg/mΒ² |
| weight | Body weight | kilograms |
| height | Height | meters |
Result: BMI = 22.9 (Normal weight)
70 / (1.75 Γ 1.75) = 70 / 3.0625 = 22.86, which falls in the Normal weight category (18.5-24.9).
A percentage calculator finds the percentage of a number, calculates percentage increase/decrease, or determines what percentage one number is of another. It answers questions like "What is 15% of 200?" (Answer: 30) or "What percentage is 30 of 200?" (Answer: 15%).
| Symbol | Variable | Unit |
|---|---|---|
| Part | The portion or subset | any |
| Whole | The total or base amount | same as Part |
Result: 22.5%
(45 / 200) Γ 100 = 22.5%. So 45 is 22.5% of 200.
A compound interest calculator computes how money grows when interest is earned on both the initial principal and previously accumulated interest. Unlike simple interest, compound interest accelerates wealth growth over time, making it the foundation of savings, investing, and debt calculations.
| Symbol | Variable | Unit |
|---|---|---|
| A | Final Amount | USD |
| P | Initial Principal | USD |
| r | Annual Interest Rate | decimal |
| n | Compounding Frequency | times per year |
| t | Time | years |
Result: $40,387.39
$10,000 compounded monthly at 7% for 20 years grows to $40,387.39 β that's $30,387.39 in interest earned.
A loan calculator estimates monthly payments, total interest, and amortization schedule for personal loans, auto loans, and other installment debt. It helps borrowers compare loan offers by showing the true cost of borrowing at different rates and terms.
| Symbol | Variable | Unit |
|---|---|---|
| PMT | Monthly Payment | USD |
| P | Loan Principal | USD |
| r | Monthly Interest Rate | annual rate / 12 |
| n | Total Number of Payments | months |
Result: $482.80/month
Total paid: $28,968. Total interest: $3,968. Effective cost of the loan is 15.9% of principal.
An area calculator computes the surface area of geometric shapes including rectangles, circles, triangles, trapezoids, and irregular polygons. It's used in construction, landscaping, real estate, and academic settings.
| Symbol | Variable | Unit |
|---|---|---|
| A | Area | square units |
| l | Length | β |
| w | Width | β |
| r | Radius | β |
| b | Base | β |
| h | Height | β |
A concrete calculator estimates the volume of concrete needed for slabs, footings, walls, and columns. It converts dimensions into cubic yards or cubic meters and calculates the number of pre-mixed bags required, helping reduce waste and cost on construction projects.
| Symbol | Variable | Unit |
|---|---|---|
| Volume | Concrete needed | cubic yards |
| Length | Slab length | feet |
| Width | Slab width | feet |
| Depth | Slab thickness | inches (convert to feet) |
Result: 2.47 cubic yards (+ 10% waste = 2.72 yards)
20 Γ 10 Γ 0.333 = 66.6 cu ft Γ· 27 = 2.47 cu yd. Order 10% extra for waste and spillage.
Total Daily Energy Expenditure β the total number of calories your body burns in a day including basal metabolism, physical activity, and the thermic effect of food.
| Symbol | Variable | Unit |
|---|---|---|
| BMR (men) | 10 Γ weight(kg) + 6.25 Γ height(cm) β 5 Γ age β 5 | kcal/day |
| BMR (women) | 10 Γ weight(kg) + 6.25 Γ height(cm) β 5 Γ age β 161 | kcal/day |
| Activity Factor | Sedentary 1.2 | Light 1.375 | Moderate 1.55 | Active 1.725 | Very Active 1.9 | multiplier |
Result: 2,697 calories/day
BMR = 10(80) + 6.25(175) β 5(30) β 5 = 1,740. TDEE = 1,740 Γ 1.55 = 2,697 kcal.
Basal Metabolic Rate β the number of calories your body needs at complete rest to maintain vital functions like breathing, circulation, and cell production.
| Symbol | Variable | Unit |
|---|---|---|
| W | Weight | kg |
| H | Height | cm |
| A | Age | years |
| S | Sex constant | +5 (men) or β161 (women) |
Result: 1,396 calories/day
BMR = 10(70) + 6.25(165) β 5(25) β 161 = 700 + 1,031.25 β 125 β 161 = 1,445 (rounded).
The proportion of your total body weight that is fat tissue, expressed as a percentage.
| Symbol | Variable | Unit |
|---|---|---|
| abdomen | Waist circumference at navel | cm |
| neck | Neck circumference | cm |
| height | Height | cm |
Result: ~17.8% body fat
BF% = 86.010 Γ logββ(85β38) β 70.041 Γ logββ(178) + 36.76 β 17.8%.
Blood Alcohol Content β the percentage of alcohol in a person's bloodstream, used to measure intoxication level.
| Symbol | Variable | Unit |
|---|---|---|
| A | Total alcohol consumed | grams |
| W | Body weight | grams |
| r | Widmark factor | 0.68 (men) / 0.55 (women) |
| H | Hours since first drink | hours |
Result: 0.047% BAC
BAC = (42 / (80,000 Γ 0.68)) β (0.015 Γ 2) = 0.077 β 0.03 = 0.047%.
The time it takes to cover one unit of distance while running or walking, typically expressed in minutes per mile or minutes per kilometer.
| Symbol | Variable | Unit |
|---|---|---|
| Total Time | Duration of run/walk | minutes |
| Distance | Distance covered | miles or km |
Result: 9:02 min/mile (5:36 min/km)
28 Γ· 3.1 = 9.03 min/mile. Convert to km: 28 Γ· 5 = 5.6 min/km.
The maximum weight an individual can lift for a single repetition of a given exercise with proper form.
| Symbol | Variable | Unit |
|---|---|---|
| Weight | Weight lifted | lbs or kg |
| Reps | Repetitions completed | count (β€10 for accuracy) |
Result: 222 lbs estimated 1RM
1RM = 185 Γ (1 + 6/30) = 185 Γ 1.2 = 222 lbs.
Body Surface Area β the measured or calculated surface area of the human body, used in medicine for drug dosing and burn assessment.
| Symbol | Variable | Unit |
|---|---|---|
| Height | Patient height | cm |
| Weight | Patient weight | kg |
Result: 1.82 mΒ²
BSA = β(170 Γ 70 / 3600) = β(3.306) = 1.818 mΒ².
The state of consuming fewer calories than your body expends, leading to weight loss over time.
| Symbol | Variable | Unit |
|---|---|---|
| TDEE | Total Daily Energy Expenditure | kcal/day |
| Calorie Intake | Daily food intake | kcal/day |
Result: 500 kcal/day deficit β ~1 lb/week weight loss
1 lb of fat β 3,500 kcal. A 500 kcal/day deficit Γ 7 days = 3,500 kcal/week.
The recommended amount of dietary protein needed to support muscle repair, immune function, and overall health.
| Symbol | Variable | Unit |
|---|---|---|
| Body Weight | Current weight | kg |
| Protein Factor | Activity-dependent multiplier | g/kg (0.8β2.2) |
Result: 135 g protein/day
75 Γ 1.8 = 135 g. Spread across 4 meals = ~34 g per meal.
The process of spreading loan payments over time so that each payment covers both interest and principal, gradually reducing the balance to zero.
| Symbol | Variable | Unit |
|---|---|---|
| P | Principal (loan amount) | $ |
| r | Monthly interest rate | decimal (annual rate Γ· 12) |
| n | Total number of payments | months |
Result: $1,580.17/month
M = 250,000 Γ [0.005417(1.005417)^360] / [(1.005417)^360 β 1] β $1,580.17.
Return on Investment β a performance metric that measures the gain or loss from an investment relative to its cost, expressed as a percentage.
| Symbol | Variable | Unit |
|---|---|---|
| Current Value | Current value of investment | $ |
| Cost | Original investment cost | $ |
Result: 35% ROI
ROI = [(13,500 β 10,000) / 10,000] Γ 100 = 35%.
The projected growth of savings over time with regular contributions and compound interest.
| Symbol | Variable | Unit |
|---|---|---|
| P | Initial deposit | $ |
| PMT | Regular contribution | $/period |
| r | Interest rate per period | decimal |
| n | Number of periods | months or years |
Result: $85,624
Initial grows to $8,144; contributions add $77,480 with interest.
The projected increase in the value of invested capital over time through compound returns.
| Symbol | Variable | Unit |
|---|---|---|
| PV | Present value (initial investment) | $ |
| r | Annual return rate | decimal |
| n | Compounding frequency | times per year |
| t | Time | years |
Result: $123,794
FV = 25,000 Γ (1 + 0.08/12)^(12Γ20) = 25,000 Γ 4.952 = $123,794.
A secured loan used to purchase a vehicle, where the car serves as collateral.
| Symbol | Variable | Unit |
|---|---|---|
| P | Loan amount (price β down payment β trade-in) | $ |
| r | Monthly interest rate | decimal |
| n | Loan term | months (36, 48, 60, 72) |
Result: $580/month
Loan = $30,000. r = 0.059/12 = 0.00492. M = $30,000 Γ 0.00492(1.00492)^60 / [(1.00492)^60β1] β $580.
A time-deposit savings product that pays a fixed interest rate for a fixed term, typically offering higher rates than regular savings accounts.
| Symbol | Variable | Unit |
|---|---|---|
| P | Deposit amount | $ |
| r | Annual interest rate | decimal |
| n | Compounding frequency | times per year |
| t | Term | years |
Result: $10,513 at maturity
A = 10,000 Γ (1 + 0.05/365)^365 = 10,000 Γ 1.05127 = $10,513.
Equated Monthly Installment β a fixed monthly payment that includes both principal and interest, commonly used for home, car, and personal loans.
| Symbol | Variable | Unit |
|---|---|---|
| P | Principal loan amount | βΉ or $ |
| r | Monthly interest rate | annual rate Γ· 12 |
| n | Total number of monthly payments | months |
Result: βΉ43,391/month
r = 8.5/1200 = 0.00708. EMI = 50,00,000 Γ 0.00708 Γ (1.00708)^240 / [(1.00708)^240 β 1] β βΉ43,391.
Systematic Investment Plan β a disciplined approach to investing a fixed amount regularly in mutual funds.
| Symbol | Variable | Unit |
|---|---|---|
| PMT | Monthly SIP amount | βΉ |
| r | Expected monthly return rate | decimal (annual Γ· 12) |
| n | Total months of investment | months |
Result: βΉ50.46 lakh
r = 0.01, n = 180. FV = 10,000 Γ [((1.01)^180 β 1) / 0.01] Γ 1.01 β βΉ50,45,760.
Goods and Services Tax β India's unified indirect tax on the supply of goods and services.
| Symbol | Variable | Unit |
|---|---|---|
| Base Price | Price before tax | βΉ |
| GST Rate | Applicable GST slab | % (5, 12, 18, or 28) |
Result: GST = βΉ1,800 | Total = βΉ11,800
βΉ10,000 Γ 0.18 = βΉ1,800 GST. Intra-state: βΉ900 CGST + βΉ900 SGST.
A progressive tax levied by the government on individual or business earnings, with rates increasing as income rises through defined tax brackets.
| Symbol | Variable | Unit |
|---|---|---|
| Taxable Income | Gross income minus deductions | $ |
| Bracket Rates | US 2024: 10%, 12%, 22%, 24%, 32%, 35%, 37% | % |
Result: $14,260 federal tax
10% on first $11,600 + 12% on $11,601β$47,150 + 22% on $47,151β$85,000.
A consumption tax imposed by the government on the sale of goods and services, added at the point of purchase.
| Symbol | Variable | Unit |
|---|---|---|
| Price | Pre-tax price of item | $ |
| Tax Rate | State + local tax rate | % |
Result: $4.12 tax | $54.11 total
$49.99 Γ 0.0825 = $4.12.
A statistical measure of the amount of variation or dispersion in a dataset, indicating how spread out values are from the mean.
| Symbol | Variable | Unit |
|---|---|---|
| xα΅’ | Each data value | any |
| ΞΌ | Population mean | same as data |
| N | Population size | count |
Result: Ο β 1.67
Mean = 5.2. DeviationsΒ²: 1.44+7.84+0.64+0.04+4.84 = 14.8. Ο = β(14.8/5) = 1.72.
The inverse operation of exponentiation β log_b(x) answers "what power of b gives x?"
| Symbol | Variable | Unit |
|---|---|---|
| b | Base | number (usually 10, e, or 2) |
| x | Argument (must be > 0) | number |
| y | Exponent / result | number |
Result: 3
10Β³ = 1000, therefore logββ(1000) = 3.
A mathematical notation indicating how many times a base number is multiplied by itself.
| Symbol | Variable | Unit |
|---|---|---|
| a | Base number | any number |
| n | Exponent / power | integer or real number |
Result: 1,024
2 Γ 2 Γ 2 Γ 2 Γ 2 Γ 2 Γ 2 Γ 2 Γ 2 Γ 2 = 1,024.
A numerical quantity that represents part of a whole, written as a/b where a is the numerator and b is the denominator.
| Symbol | Variable | Unit |
|---|---|---|
| a/b | First fraction | ratio |
| c/d | Second fraction | ratio |
Result: 23/20 = 1 3/20
(3Γ5 + 2Γ4) / (4Γ5) = (15 + 8) / 20 = 23/20.
The mathematical measure of the likelihood that an event will occur, expressed as a number between 0 and 1.
| Symbol | Variable | Unit |
|---|---|---|
| P(Event) | Probability of event | 0 to 1 (or 0% to 100%) |
| Favorable | Number of ways event can happen | count |
| Total | Total possible outcomes | count |
Result: 13/52 = 0.25 = 25%
13 hearts out of 52 total cards. P = 13/52 = 1/4.
A second-degree polynomial equation of the form axΒ² + bx + c = 0.
| Symbol | Variable | Unit |
|---|---|---|
| a | Coefficient of xΒ² | number (a β 0) |
| b | Coefficient of x | number |
| c | Constant term | number |
Result: x = 3 or x = 2
x = (5 Β± β(25β24)) / 2 = (5 Β± 1) / 2 β x = 3 or x = 2.
The base-2 numeral system using only digits 0 and 1, the foundation of all digital computing.
| Symbol | Variable | Unit |
|---|---|---|
| dα΅’ | Binary digit at position i | 0 or 1 |
| i | Position from right (starting at 0) | integer |
Result: 26 (decimal)
1Γ16 + 1Γ8 + 0Γ4 + 1Γ2 + 0Γ1 = 16 + 8 + 2 = 26.
The amount of three-dimensional space enclosed within a closed surface, measured in cubic units.
| Symbol | Variable | Unit |
|---|---|---|
| r | Radius | length units |
| h | Height | length units |
| l, w | Length, Width | length units |
Result: 785.4 cmΒ³
V = Ο Γ 5Β² Γ 10 = Ο Γ 250 = 785.4 cmΒ³.
A triangle with one 90-degree angle, where the relationship between sides follows the Pythagorean theorem.
| Symbol | Variable | Unit |
|---|---|---|
| a | One leg | length |
| b | Other leg | length |
| c | Hypotenuse (longest side, opposite 90Β°) | length |
Result: Hypotenuse c = 5
c = β(3Β² + 4Β²) = β(9 + 16) = β25 = 5. Classic 3-4-5 right triangle.
Grade Point Average β a standardized measure of academic achievement calculated by averaging grade points earned across courses.
| Symbol | Variable | Unit |
|---|---|---|
| Grade Points | Numeric value of letter grade | A=4, B=3, C=2, D=1, F=0 |
| Credit Hours | Course credit weight | credits |
Result: 3.57 GPA
(4Γ3 + 3.3Γ4 + 3.7Γ3) / (3+4+3) = (12 + 13.2 + 11.1) / 10 = 3.63.
A fundamental law of electronics stating that voltage equals current times resistance (V = IR).
| Symbol | Variable | Unit |
|---|---|---|
| V | Voltage | volts (V) |
| I | Current | amperes (A) |
| R | Resistance | ohms (Ξ©) |
Result: Voltage = 20 V
V = 2 Γ 10 = 20 volts.
The displacement of a structural beam under load, critical for ensuring safety and serviceability in construction.
| Symbol | Variable | Unit |
|---|---|---|
| P | Applied load | N or lbs |
| L | Beam span | m or ft |
| E | Modulus of elasticity | Pa or psi |
| I | Moment of inertia | mβ΄ or inβ΄ |
Result: Ξ΄ = 2.7 mm
Ξ΄ = 10,000 Γ 6Β³ / (48 Γ 200Γ10βΉ Γ 8.33Γ10β»βΆ) = 0.0027 m = 2.7 mm.
Mass per unit volume of a substance, expressed in kg/mΒ³ or g/cmΒ³.
| Symbol | Variable | Unit |
|---|---|---|
| Ο | Density | kg/mΒ³ |
| m | Mass | kg |
| V | Volume | mΒ³ |
Result: 2.5 g/cmΒ³
Ο = 500 / 200 = 2.5 g/cmΒ³. Denser than water (1.0 g/cmΒ³) β it sinks.
The energy possessed by an object due to its motion, proportional to mass and the square of velocity.
| Symbol | Variable | Unit |
|---|---|---|
| m | Mass | kg |
| v | Velocity | m/s |
Result: 546,750 J β 547 kJ
KE = Β½ Γ 1,500 Γ 27Β² = 0.5 Γ 1,500 Γ 729 = 546,750 J.
A fundamental equation relating the pressure, volume, temperature, and amount of an ideal gas.
| Symbol | Variable | Unit |
|---|---|---|
| P | Pressure | atm or Pa |
| V | Volume | L or mΒ³ |
| n | Amount of substance | moles |
| R | Gas constant | 0.0821 LΒ·atm/(molΒ·K) or 8.314 J/(molΒ·K) |
| T | Temperature | Kelvin |
Result: V = 49.3 L
V = nRT/P = 2 Γ 0.0821 Γ 300 / 1 = 49.26 L.
A rotational force that causes an object to rotate about an axis, measured in newton-meters (NΒ·m) or foot-pounds (ftΒ·lb).
| Symbol | Variable | Unit |
|---|---|---|
| Ο | Torque | NΒ·m or ftΒ·lb |
| F | Applied force | N or lb |
| d | Distance from pivot (moment arm) | m or ft |
| ΞΈ | Angle between force and lever arm | degrees |
Result: 15 NΒ·m
Ο = 50 Γ 0.3 Γ sin(90Β°) = 50 Γ 0.3 Γ 1 = 15 NΒ·m.
The time required for a quantity to reduce to half its initial value, commonly used in nuclear physics and pharmacology.
| Symbol | Variable | Unit |
|---|---|---|
| Nβ | Initial quantity | any |
| N(t) | Remaining quantity at time t | same as Nβ |
| t | Elapsed time | same as tΒ½ |
| tΒ½ | Half-life | years, hours, etc. |
Result: 25 g remaining
100 Γ (Β½)^(11,460/5,730) = 100 Γ (Β½)Β² = 100 Γ 0.25 = 25 g.
The analysis of fluid movement through pipes, considering flow rate, velocity, pressure drop, and friction losses.
| Symbol | Variable | Unit |
|---|---|---|
| Q | Volumetric flow rate | mΒ³/s or GPM |
| A | Cross-sectional area of pipe | mΒ² |
| v | Average flow velocity | m/s |
| d | Pipe internal diameter | m |
Result: 0.0162 mΒ³/s β 257 GPM
A = Ο(0.0508)Β² = 0.00811 mΒ². Q = 0.00811 Γ 2 = 0.01621 mΒ³/s.
Cubic Meter β the standard unit of measurement for shipping volume in international freight and logistics.
| Symbol | Variable | Unit |
|---|---|---|
| Length | Package length | meters |
| Width | Package width | meters |
| Height | Package height | meters |
Result: 0.96 CBM
1.2 Γ 0.8 Γ 1.0 = 0.96 mΒ³. For 10 such boxes: 9.6 CBM total.
The total charge for shipping goods from origin to destination, based on weight, volume, distance, and mode of transport.
| Symbol | Variable | Unit |
|---|---|---|
| Actual Weight | Physical weight of shipment | kg |
| Volumetric Weight | CBM Γ factor (e.g., 167 for air) | kg |
| Rate | Carrier rate per kg or per CBM | $/kg or $/CBM |
Result: $1,670 (charged on volumetric: 668 kg)
Volumetric = 4 Γ 167 = 668 kg > 500 kg actual. Cost = 668 Γ $2.50 = $1,670.
The area of a space measured in square feet, commonly used in US real estate and construction to describe floor area.
| Symbol | Variable | Unit |
|---|---|---|
| Length | Room length | feet |
| Width | Room width | feet |
Result: 180 sq ft
15 Γ 12 = 180 square feet. For irregularly shaped rooms, divide into rectangles and sum.
The calculation of materials needed for a roof based on area, pitch, and material type.
| Symbol | Variable | Unit |
|---|---|---|
| Footprint | Building length Γ width | sq ft |
| Pitch Multiplier | 4/12β1.054, 6/12β1.118, 8/12β1.202, 12/12β1.414 | factor |
Result: 2,236 sq ft β 22.4 roofing squares
2,000 Γ 1.118 = 2,236 sq ft Γ· 100 = 22.36 squares.
The calculation of posts, rails, and pickets needed for a fence based on linear footage and fence type.
| Symbol | Variable | Unit |
|---|---|---|
| Total Length | Fence perimeter | linear feet |
| Post Spacing | Distance between posts | feet (typically 6 or 8) |
Result: 20 posts, 38 rails, 300 pickets
Posts: (150/8)+1 = 19.75 β 20. Rails: 2 per section Γ 19 = 38. Pickets: 150/0.5 = 300 (at 6" spacing).
The calculation of decking boards, posts, and hardware needed for an outdoor deck construction project.
| Symbol | Variable | Unit |
|---|---|---|
| Deck Area | Total deck surface | sq ft |
| Board Coverage | Board width Γ length (typical: 5.5" Γ 12ft = 5.5 sq ft) | sq ft per board |
| Waste Factor | Extra for cuts and waste | 1.10β1.15 (10β15%) |
Result: 39 boards (with 10% waste)
192 / 5.5 = 34.9 boards Γ 1.10 waste = 38.4 β 39 boards.
The calculation of flooring materials needed based on room area, accounting for waste from cuts and layout patterns.
| Symbol | Variable | Unit |
|---|---|---|
| Room Area | Total floor area | sq ft |
| Waste Factor | Extra for cuts, damage, and future repairs | 1.10 (10%) standard, 1.15 for diagonal |
Result: Order 385 sq ft of flooring
350 Γ 1.10 = 385 sq ft. For 20-sq-ft boxes: 385/20 = 19.25 β 20 boxes.
The cost to operate an electrical device, based on its wattage, usage time, and the local electricity rate.
| Symbol | Variable | Unit |
|---|---|---|
| Watts | Device power consumption | W |
| Hours | Daily usage time | hours |
| Rate | Electricity price | $/kWh |
Result: $1.56/day β $46.80/month
(1,500 Γ 8 / 1,000) Γ 0.13 = 12 kWh Γ $0.13 = $1.56/day.
The total fuel expense for a trip based on distance, vehicle fuel efficiency, and fuel price.
| Symbol | Variable | Unit |
|---|---|---|
| Distance | Trip distance | miles |
| MPG | Vehicle fuel efficiency | miles per gallon |
| Price | Fuel cost | $/gallon |
Result: $62.50
500/28 = 17.86 gallons Γ $3.50 = $62.50.
The distance a vehicle can travel per unit of fuel, measured in miles per gallon (MPG) or kilometers per liter.
| Symbol | Variable | Unit |
|---|---|---|
| Miles | Distance driven since last fill-up | miles |
| Gallons | Fuel consumed | gallons |
Result: 27.8 MPG
320 / 11.5 = 27.83 MPG.
A tool to calculate the gratuity amount and total bill, optionally splitting among multiple diners.
| Symbol | Variable | Unit |
|---|---|---|
| Bill | Pre-tax bill amount | $ |
| Tip% | Tip percentage | % (typically 15β25%) |
Result: Tip: $17.00 | Total: $102.00 | Per person: $25.50
$85 Γ 0.20 = $17. Total = $102. Each of 4 pays $25.50.
The estimated cost for a concrete project based on volume needed, concrete type, and delivery/labor costs.
| Symbol | Variable | Unit |
|---|---|---|
| Volume | Total concrete needed | cubic yards |
| Price | Ready-mix cost per yard | $/cubic yard |
Result: ~$740 for concrete only
20Γ20Γ0.333 = 133.3 cu ft Γ· 27 = 4.94 ydΒ³ Γ $150 = $741.
A measure of digital information expressed in bits, bytes, and their multiples (KB, MB, GB, TB).
| Symbol | Variable | Unit |
|---|---|---|
| Byte | 8 bits | B |
| KB | 1,024 bytes | Kilobyte |
| MB | 1,024 KB | Megabyte |
| GB | 1,024 MB | Gigabyte |
| TB | 1,024 GB | Terabyte |
Result: 5,120 MB = 5,242,880 KB = 5,368,709,120 Bytes
5 Γ 1,024 = 5,120 MB. 5,120 Γ 1,024 = 5,242,880 KB.